Read by QxMD icon Read

focus x

Olimpia Paun, Fawn Cothran
Family caregivers of individuals with Alzheimer's disease and related dementias (ADRD) experience long-term mental health effects. Although caregivers who place relatives in long-term care (LTC) experience increased depression, anxiety, and chronic grief post-placement, interventions to improve caregivers' mental health have focused mainly on in-home care. Current researchers previously tested a group-based Chronic Grief Management Intervention (CGMI) with ADRD caregivers of individuals in LTC, with significant effects on caregiver mental health outcomes...
June 18, 2018: Journal of Psychosocial Nursing and Mental Health Services
Manuel Contreras Llanes, Manuel Jesús Gázquez González, Silvia María Pérez Moreno, Juan Pedro Bolívar Raya
This work is focused on the manufacture of commercial cement using as additive ilmenite mud, a waste generated during TiO2 pigment production. The cements were produced by adding different proportions of mud (2.5, 5 and 10 wt%) to ordinary Portland cement (OPC). The ilmenite mud and the ilmenite mud cements (IMCs) were characterised physico-chemically by X-ray fluorescence (XRF), inductively coupled plasma mass spectrometry (ICP-MS) and X-ray diffraction (XRD). Moreover, the technological properties of the IMCs were evaluated and compared with a reference material (OPC)...
June 19, 2018: Environmental Science and Pollution Research International
R Schmitt
X-ray images exposed in neutral position and radiocarpally centred are essential in imaging of the distal radioulnar joint (DRUJ). The anatomic orientation of the DRUJ is favourable for acquiring transaxial scans to display its anatomy, subtle derangements, osteoarthritis and intra-articular fractures free from superpositions. The triangular fibrocartilage complex (TFCC) is the most important stabilizer of the DRUJ. Provided that a focused clinical indication is given, high-resolution images are acquired, and an intra-venous or intra-articular contrast-agent is applied, all TFCC structures and destabilizing lesions can be displayed with the use of CT and MRI...
June 18, 2018: Der Orthopäde
Vincent Moraes, Helmut Riedl, Christoph Fuger, Peter Polcik, Hamid Bolvardi, David Holec, P H Mayrhofer
The demand to discover new materials is scientifically as well as industrially a continuously present topic, covering all different fields of application. The recent scientific work on thin film materials has shown, that especially for nitride-based protective coatings, computationally-driven understanding and modelling serves as a reliable trend-giver and can be used for target-oriented experiments. In this study, semi-automated density functional theory (DFT) calculations were used, to sweep across transition metal diborides in order to characterize their structure, phase stability and mechanical properties...
June 18, 2018: Scientific Reports
Jan-David Nicolas, Marten Bernhardt, Susanne F Schlick, Malte Tiburcy, Wolfram-Hubertus Zimmermann, Amara Khan, Andrea Markus, Frauke Alves, Karl Toischer, Tim Salditt
With the development of advanced focusing optics for x-rays, we can now use x-ray beams with spot sizes in the micro- or nanometer range to scan cells and large areas of tissues and continuously record the diffraction signals. From this data, x-ray scattering maps or so-called x-ray darkfield images are computed showing how different types of cells or regions of tissues differ in their diffraction intensity. At the same time a diffraction pattern is available for each scan point which encodes the local nanostructure, averaged over many contributing constituents illuminated by the beam...
June 15, 2018: Progress in Biophysics and Molecular Biology
Maximilian Scharonow, Christian Weilbach
BACKGROUND: In the prehospital situation, the diagnostic armamentarium available to the rescue physician is limited. Emergency ultrasound has proven to be a useful diagnostic tool, providing crucial information for the management of critically ill and injured patients. The proportion of performed ultrasound scans in all patients attended to by the rescue service team, the quality of the findings and the ultrasound-related changes in management approach and patient transport were evaluated...
June 18, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Yelizaveta Chernysh, Magdalena Balintova, Leonid Plyatsuk, Marian Holub, Stefan Demcak
The paper is focused on the research of biochemical treatment of sewage sludge and phosphogypsum under sulphate-reducing conditions with a phosphorus release process. The theoretical foundations of the work were based on the biochemical formalization using the principles of autocatalysis of natural systems. During the experimental research for the control of physicochemical parameters of the process spectroquantic, X-ray fluorescence analysis and other techniques were used. A schematic model of the dephosphatation process under anaerobic stabilization of sewage sludge and phosphogypsum was developed...
June 15, 2018: International Journal of Environmental Research and Public Health
Max Masthoff, Mirjam Gerwing, Malte Masthoff, Maximilian Timme, Johannes Kleinheinz, Markus Berninger, Walter Heindel, Moritz Wildgruber, Christoph Schülke
BACKGROUND:  As dental imaging accounts for approximately 40 % of all X-ray examinations in Germany, profound knowledge of this topic is essential not only for the dentist but also for the clinical radiologist. This review focuses on basic imaging findings regarding the teeth. Therefore, tooth structure, currently available imaging techniques and common findings in conserving dentistry including endodontology, periodontology, implantology and dental trauma are presented. METHODS:  Literature research on the current state of dental radiology was performed using Pubmed...
June 18, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Carlos Alfredo Silva-Islas, Perla D Maldonado
Nuclear Factor Erythroid 2-related factor 2 (Nrf2) is a transcription factor that regulates the expression of genes involved in the metabolism, immune response, cellular proliferation, and other processes; however, the attention has been focused on the study of its ability to induce the expression of proteins involved in the antioxidant defense. Nrf2 is mainly regulated by Kelch-like ECH-associated protein 1 (Keap1), an adapter substrate of Cullin 3 (Cul3) ubiquitin E3 ligase complex. Keap1 represses Nrf2 activity in the cytoplasm by its sequestering, ubiquitination and proteosomal degradation...
June 15, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
Fanmao Liu, Ignasi Fina, Guillaume Sauthier, Florencio Sanchez, Andrew M Rappe, Josep Fontcuberta
Ferroelectric perovskites hold promise of enhanced photovoltaic efficiency and photocatalytic activity. Consequently, the photoresponse of oxide ferroelectric thin films is an active field of research. In electrode/ferroelectric/electrode devices, internal charge in the ferroelectric, free charge in the electrodes, and buried adsorbates at interfaces combine to screen the ferroelectric polarization and to stabilize the polar state. Under illumination, photo-induced carriers and photo-dissociated adsorbates may disrupt the screening equilibrium, modifying the switchable polarization and altering its expected benefits...
June 18, 2018: ACS Applied Materials & Interfaces
Noordiana Nordin, Nor Azah Yusof, Son Radu, Roozbeh Hushiarian
Vibrio parahaemolyticus (V. parahaemolyticus) is a common foodborne pathogen that contributes to a large proportion of public health problems globally, significantly affecting the rate of human mortality and morbidity. Conventional methods for the detection of V. parahaemolyticus such as culture-based methods, immunological assays, and molecular-based methods require complicated sample handling and are time-consuming, tedious, and costly. Recently, biosensors have proven to be a promising and comprehensive detection method with the advantages of fast detection, cost-effectiveness, and practicality...
June 3, 2018: Journal of Visualized Experiments: JoVE
Janina Fett, Alexander Ulbricht, Alexander Ferrauti
Fett, J, Ulbricht, A, and Ferrauti, A. Impact of physical performance and anthropometric characteristics on serve velocity in elite junior tennis players. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to investigate the impact of physical performance components and anthropometric characteristics on serve velocity (SV) in elite junior tennis players depending on the sex and age group. A sample of the best 1,019 (male = 625, female = 394) junior squad tennis players of the German Tennis Federation participated in the study involving complex anthropometric measurements (body height, body mass, sitting height, and arm span) and physical tests (e...
June 14, 2018: Journal of Strength and Conditioning Research
X Wang, M Roger, R Clément, S Lecomte, F Biaso, L A Abriata, P Mansuelle, I Mazurenko, M T Giudici-Orticoni, E Lojou, M Ilbert
Acidithiobacillus ferrooxidans , a chemolithoautotrophic Gram-negative bacterium, has a remarkable ability to obtain energy from ferrous iron oxidation at pH 2. Several metalloproteins have been described as being involved in this respiratory chain coupling iron oxidation with oxygen reduction. However, their properties and physiological functions remain largely unknown, preventing a clear understanding of the global mechanism. In this work, we focus on two metalloproteins of this respiratory pathway, a diheme cytochrome c4 (Cyt c4 ) and a green copper protein (AcoP) of unknown function...
June 7, 2018: Chemical Science
B Feng, N R Lugg, A Kumamoto, N Shibata, Y Ikuhara
Atomic-resolution energy dispersive X-ray spectroscopy (EDS) in scanning transmission electron microscopy (STEM) has recently been shown to be a powerful approach to investigate local chemistry of nanoscale structures quantitatively. While most of the studies have been focused on the quantification of the chemical composition in bulk crystals, few were discussed on interfaces. In this study, we theoretically explored the applicability of STEM EDS for the quantification of local chemistry in grain boundaries (GBs), where the electron channeling can be dramatically changed compared with the bulk due to non-periodic atomic arrangement...
June 3, 2018: Ultramicroscopy
Cancan Zhou, Zhenyan Gao, Ju Wang, Meiqin Wu, Shuang Hu, Fei Chen, Junxia Liu, Hui Pan, Chonghuai Yan
Lead exposure has been evidenced as a risk factor for Alzheimer's disease (AD), mainly affecting the ageing. However, the early manifestation and mechanisms of AD-like pathology induced by lead exposure remains to be elucidated. Considering the fact that impaired cholesterol metabolism is associated with many neurodegenerative disorders including AD, in this study we focused on the role of cholesterol metabolism in lead induced premature AD-like pathology. We treated weaning rats with lead at different concentrations for 4 weeks...
June 14, 2018: Toxicology Letters
Paula Mosińska, Adrian Szczepaniak, Jakub Fichna
Functional gastrointestinal disorders (FGIDs), such as irritable bowel syndrome (IBS) and chronic constipation (CC), are commonly diagnosed conditions in clinical practice which create a substantial global burden. Since the farnesoid X receptor (FXR) and bile acids (BAs) are responsible for maintaining homeostasis in the GI tract, any disturbances in the expression of FXR or the composition of BAs may contribute to the development of the GI symptoms. Alterations in the mechanism of action of FXR directly affect the BAs pool and account for increased intestinal permeability and changes in abundance and diversity of gut microbiota leading to intestinal dysmotility...
May 30, 2018: Digestive and Liver Disease
X-B Wei, Y-H Liu, J-L Huang, X-L Chen, D-Q Yu, N Tan, J-Y Chen, P-C He
AIM: Diabetes is a risk factor in infective endocarditis. However, few studies have focused on the prognostic value of prediabetes in infective endocarditis. This analysis aimed to explore the relationship between prediabetes and outcomes for people with infective endocarditis. METHODS: Diabetes and prediabetes definitions were based on the American Diabetes Association 2014 criteria. A total of 866 people who had been consecutively diagnosed with infective endocarditis between January 2009 and July 2015 were included in the analysis...
June 16, 2018: Diabetic Medicine: a Journal of the British Diabetic Association
Borja Martinez-Tellez, Lourdes Ortiz-Alvarez, Guillermo Sanchez-Delgado, Huiwen Xu, Francisco M Acosta, Elisa Merchan-Ramirez, Victoria Muñoz-Hernandez, Wendy D Martinez-Avila, Miguel A Contreras-Gomez, Angel Gil, Idoia Labayen, Jonatan R Ruiz
BACKGROUND & AIM: The thermic effect of food (TEF) refers to the increase of the metabolic rate and body temperature in response to a single meal. To date, most of the studies have focused to determine the TEF in terms of energy expenditure, but little is known about which is the response in terms of skin temperature. The aim of this study was to analyze whether the thermic effect of food (TEF) on the skin temperature with a standardized and individualized liquid meal test is different in young adult men than in young adult women...
June 2, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
B Liao, Y Ma, X Ma, G Dong
A series of laboratory experiments were performed to study the evolution of Peregrine breather (PB) in a wave flume in finite depth, and wave trains were initially generated in a region of quiescent water and then propagated into an adverse current region for which the current velocity strength gradually increased from zero to an approximately stable value. The PB is often considered as a prototype of oceanic freak waves that can focus wave energy into a single wave packet. In the experiment, the cases were selected with the relative water depths k_{0}h (k_{0} is the wave number in quiescent water and h is the water depth) varying from 3...
May 2018: Physical Review. E
Kyungtaek Jun, Dongwook Kim
X-ray computed tomography has been studied in various fields. Considerable effort has been focused on reconstructing the projection image set from a rigid-type specimen. However, reconstruction of images projected from an object showing elastic motion has received minimal attention. In this paper, a mathematical solution to reconstructing the projection image set obtained from an object with specific elastic motions-periodically, regularly, and elliptically expanded or contracted specimens-is proposed. To reconstruct the projection image set from expanded or contracted specimens, methods are presented for detection of the sample's motion modes, mathematical rescaling of pixel values, and conversion of the projection angle for a common layer...
2018: PloS One
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"